blob: 1a88086a41eaa42ffb6b1540f27162ab2e52e034 [file] [log] [blame]
* Copyright 2014 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "sk_tool_utils.h"
#include "sk_tool_utils_flags.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkShader.h"
#include "SkTestScalerContext.h"
#include "SkTextBlob.h"
DEFINE_bool(portableFonts, false, "Use portable fonts");
DEFINE_bool(resourceFonts, false, "Use resource fonts");
namespace sk_tool_utils {
const char* colortype_name(SkColorType ct) {
switch (ct) {
case kUnknown_SkColorType: return "Unknown";
case kAlpha_8_SkColorType: return "Alpha_8";
case kIndex_8_SkColorType: return "Index_8";
case kARGB_4444_SkColorType: return "ARGB_4444";
case kRGB_565_SkColorType: return "RGB_565";
case kRGBA_8888_SkColorType: return "RGBA_8888";
case kBGRA_8888_SkColorType: return "BGRA_8888";
return "unexpected colortype";
SkTypeface* create_portable_typeface(const char* name, SkTypeface::Style style) {
SkTypeface* face;
if (FLAGS_portableFonts) {
face = create_font(name, style);
} else if (FLAGS_resourceFonts) {
face = resource_font(name, style);
} else {
face = SkTypeface::CreateFromName(name, style);
return face;
void set_portable_typeface(SkPaint* paint, const char* name, SkTypeface::Style style) {
SkTypeface* face = create_portable_typeface(name, style);
void write_pixels(SkCanvas* canvas, const SkBitmap& bitmap, int x, int y,
SkColorType colorType, SkAlphaType alphaType) {
SkBitmap tmp(bitmap);
const SkImageInfo info = SkImageInfo::Make(tmp.width(), tmp.height(), colorType, alphaType);
canvas->writePixels(info, tmp.getPixels(), tmp.rowBytes(), x, y);
SkShader* create_checkerboard_shader(SkColor c1, SkColor c2, int size) {
SkBitmap bm;
bm.allocN32Pixels(2 * size, 2 * size);
bm.eraseArea(SkIRect::MakeLTRB(0, 0, size, size), c2);
bm.eraseArea(SkIRect::MakeLTRB(size, size, 2 * size, 2 * size), c2);
return SkShader::CreateBitmapShader(
bm, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode);
void draw_checkerboard(SkCanvas* canvas, SkColor c1, SkColor c2, int size) {
SkPaint paint;
paint.setShader(create_checkerboard_shader(c1, c2, size))->unref();
void add_to_text_blob(SkTextBlobBuilder* builder, const char* text, const SkPaint& origPaint,
SkScalar x, SkScalar y) {
SkPaint paint(origPaint);
SkTDArray<uint16_t> glyphs;
size_t len = strlen(text);
glyphs.append(paint.textToGlyphs(text, len, NULL));
paint.textToGlyphs(text, len, glyphs.begin());
const SkTextBlobBuilder::RunBuffer& run = builder->allocRun(paint, glyphs.count(), x, y,
memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t));
} // namespace sk_tool_utils